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Individual Calculations April 2009 |
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| Lamawansa, Yasas Total change: -51.25 | |   |
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| Bhiwani Fide Rated Open Chess Tournament 21 Dec. to 27 Dec. 2008 | Bhiwani, Haryana | IND | 2008-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1829 | 1772 | 1.00 | 6 | -1.54 | 25 | -38.50 | |
|  Saxena, Arpit | | | 1981 | IND | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Preetika, Tayal | | | 1865 | IND | 0.00 | 1 | -0.37 | 25 | -9.25 | |  Joshi, Sunil | | | 1841 | IND | 0.00 | 1 | -0.40 | 25 | -10.00 | | | Varma, Vikrant | | | 1786 | IND | 0.00 | 1 | -0.48 | 25 | -12.00 | | | Ishwar, Ramteke | | | 1740 | IND | 1.00 | 1 | 0.46 | 25 | 11.50 | | | Lamawansa, Yashmi | | | 1759 | SRI | 0.00 | 1 | -0.52 | 25 | -13.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | 2nd Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1699 | 1772 | 1.00 | 2 | -0.18 | 25 | -4.50 | |
| | Rathnayake, Jeewanthi | | | 1553 | SRI | 0.50 | 1 | -0.28 | 25 | -7.00 | | | Pinto, Semuthu | | | 1845 | SRI | 0.50 | 1 | 0.10 | 25 | 2.50 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Sri Lanka Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2050 | 1772 | 0.00 | 2 | -0.33 | 25 | -8.25 | |
| | Kurukulasuriya, Prasanna | | | 2092 | SRI | 0.00 | 1 | -0.13 | 25 | -3.25 | | | Perera, L.n. | | | 2008 | SRI | 0.00 | 1 | -0.20 | 25 | -5.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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